Improvement in machines for thrashing and hulling clover



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Machines for Thrashing and Hulling Clover. No. 138,366,PatentedApri|29,l873.

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Machines forThrashing and Hulling Clover. No. 138,366.PatentedApril29,1873.

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l. T. BARTON.

Machines for Thrashing and Hulling Glover. 910.113.8366,PatentedApri|29,.1873.

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ISAAC T. BARTON, OF UNION O1TY,MIOHIGAN.

IMPROVEMENT IN MACHINES FOR THRASHING AND HULLING CLOVER.

Specification forming part of Letters Patent No. 138,366, dated April29, 1873; application filed February 14, 1873.

This invention relates to improvements in the construction andarrangement of the several devices and mechanisms described,constituting a machine for thrashing, hulling, and separatingclover-seed; and the invention consists in employing a slotted concavefor the thrashing-cylinder, below which is an inclined way so arrangedthat the greater portion of the chaff and seed mingled therewith istaken from the thrashing-cylinder by said inclined feed-board directlyto the hulling-cylinder without going with the straw; and it furtherconsists in the construction of a reciprocating straw-carrier withinclined ratchet-ribs on its upper surface, a bottom of slats, or acoarse riddle and a supplemental riddle or sieve underneath of finermeshes or perforations; and

it further consists in the construction and employment'of an imperforateratchet-ribbed conveyer beneath the straw-carrier depressed toward thetail of the machine and rising toward the cylinders to convey to thehulling apparatus the mingled chaff and seed from which the straw isseparated by the straw-carrier; and it also consists in applying to thebottom of the elevator, which conveys the chaff, &c., from the fan backto the thrasher, a sieve or sifter about half way up its length toeliminate such seed as may fall through in the passage.

In the accompanying drawing, which forms a part of this specification,Figure 1 is a top or plan view of the machine with the covering removed.Fig.2 is a side elevation of the same. Fig. 3 is a longitudinal verticalsection taken on the line w w of Fig. 1. Fig. 4 is a side elevation ofthe machine from the other side.

Like letters of reference made use of in the several figures indicatelike parts wherever used.

General Description.

In said drawing, A represents the thrashin gcylinder, which plays in aslotted concave, A.

B is the hulling-cylinder placed behind and below thethrashing-cylinder, and playing in the casement or concave B, which isof considerably larger diameter than the cylinder, and placed eccentricthereto, as shown clearly in section at Fig. 3 of the drawing. Thisconstruction of huller allows the chaff to feed in as fast as it can behulled, and dispenses with the feed rollers usually found necessary.From below the thrashing-cylinder to the mouth of the huller extends theinclined feed-way 0, upon which falls the larger portion of the chafffrom the thrasher, said chaff going directly into the huller along thefeed-way without again mixing with the straw. I find that aboutninetenths of the chaff is so disposed of. From the huller the seed andchaff are discharged upon an endless apron, D, and by it conveyed to thesieve or fanning-mill E, of which F is the blast-fan. The seed is herecleansed in the usual manner by appropriate and wellknown mechanism. Thetailings are delivered to the elevator G and conveyed back again to thehuller by way of the thrashing-cylinder. About half way up the elevatorG, and in the bottom thereof, is a sieve or screen, 9, which, ifdesired, may be vibrated by any common mechanism. Through this sievepasses such of the seed as may have found its way to the under side ofthe belt, and is caught in a trough (not shown in the drawing) anddelivered again to the fanning-mill to be cleaned with the rest. Thestraw or stalks of the clover and such portion of the chaff as is notforced through the slots of the thrasher-concave are'forced by thecylinder through the throat H or hood, and cast upon the siftingconveyer K, which, vibrating, shakes the chaff through its slats andconveys the stalks and straw out of the machine. The chaff falls throughupon the conveyer L, which carries it back into the huller. Thesiftingconveyer K is made with transverse slats or bars m, upon whichrests a series of longitudinal ribs, n,the

upper surface of which are serrated ratchet fashion with the lowest endsof the serrations or ratchets toward the thrashing-cylinder. The wholeconveyer K is swung from the frame-work of the machine by the pivotedconnections 70, so that it is free to vibrate longitudinally. Motion iscommunicated to it by essary herein to further describe it.

means of cranks M situated at the outer extremities of the crank-shaftN. From each of these two cranks a pitman, M, proceeds to the body ofthe conveyer, where it is pivoted. The cranks M are so quartered uponthe shaft as to give the conveye'r K an up-lift while it is going to therear or away from the thrashingcylinder. By this peculiar motion thestalks and straw are lifted along readily to the discharge.

The lower conveyer L is made in a similar manner, except that theflooring is imperforate and the incline of the ratchets is in theopposite direction. The crank Q,which operates this latter conveyerthrough. the pitman P, is also upon the crank-shaft N but is located inthe middle of the shaft, and the pitman is connected to the under sideof the con- "veyer. This arrangement of the cranks serves -to thispoint, and, if not sifted, would pass back with the chaff to the hullerin an endless round. The disposition of the shafting and belting andtransmission of power are sufficiently explained by the drawing and thearrows marked thereon, and it is deemed unnee- The power to drive themachine is applied to the driving-pulley S, and from its shaftcommunicated by belting and cranks to the various mechanisms. Above theconveyer K is placed a revolving beater or separating-cylinder, T, forthe purpose of stirring up and further separating the chaff, seed, andstraw as it passes beneath. This cylinder also assists in crowdin galong the straw and stalks toward the discharge.

Having thus fully described the invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination of the thrashing-cylinderA, slat concave A,hulling-eylinder B, and concave B, arranged, as herein described, toseparate the straw from the mingled chafi' and seed, and cause the bulkof the latter to pass from the thrasher through the concave directly tothe balling-cylinder, as explained.

2. The conveyer K with ratchet-teeth or ribs n, slat bottom m, andsupplemental riddle B, all constructed and arranged substantially asherein described. I

3. The reciprocating imperforate ratchetconveyer L depressed toward thetail of the machine, and employed, in combination with the reciprocatingstraw-carrier K, constructed as described, to convey to the huller theseed and chaff separated from the straw by the said carrier K, asexplained.

4. The sieve g placed in the bottom of the elevator G, in combinationtherewith, substantially as specified.

ISAAC T. BARTON. Witnesses:

J OHN W. MUNDAY, HEINRICH F. Baum.

